Photonics / Fotonik

Permanent URI for this collectionhttps://hdl.handle.net/11147/2590

Browse

Search Results

Now showing 1 - 3 of 3
  • Article
    Citation - WoS: 4
    Citation - Scopus: 3
    Hg(ii)-Mediated Intramolecular Cyclization of Alkynyl Hydrazones: Towards a New Reaction-Based Sensing Approach for Hg(ii) Ions
    (Wiley, 2022) Tütüncü, Büşra Buse; Cebeci, Miray; Emrullahoğlu, Mustafa; Tütüncü, Büşra Buse; 04.04. Department of Photonics; 01. Izmir Institute of Technology; 04. Faculty of Science
    Drawing upon an intramolecular cyclization/annulation reaction sequence mediated by Hg2+ ions, a BODIPY-based fluorescent probe decorated with an alkynyl hydrazone motif responds rapidly and selectively to Hg2+ ions, with a detection limit of 29 nM and a fluorescence turn-on ratio of 15-fold. With the addition of Hg2+ ions, the BODIPY-based alkynyl hydrazone transforms into a pyrazole ring to mediate a turn-on emission response clearly observable to the naked eye under visible light excitation.
  • Article
    Citation - WoS: 4
    Citation - Scopus: 4
    A Cyclopalladated Bodipy Construct as a Fluorescent Probe for Carbon Monoxide
    (Wiley, 2022) Çevik Eren, Merve; Eren, Ahmet; Tütüncü, Büşra Buse; Tütüncü, Büşra Buse; Emrullahoğlu, Mustafa; Dartar, Suay; Emrullahoğlu, Mustafa; 04.01. Department of Chemistry; 04.04. Department of Photonics; 01. Izmir Institute of Technology; 04. Faculty of Science
    By introducing a palladium ion into the backbone of BODIPY, we devised a cyclopalladated BODIPY construct that was almost non-emissive in the absence of any analyte but became highly fluorescent upon interacting with carbon monoxide (CO) in solution and in living cells. A process of ortho-carbonylation and depalladation mediated by the specific binding of CO to palladium, promoted the release of the heavy atom from the fluorophore and consequently generated a fluorescence signal with an exceptionally high (60-fold) enhancement ratio.
  • Article
    Citation - WoS: 23
    Citation - Scopus: 23
    Bodipy-Vinyl Dibromides as Triplet Sensitisers for Photodynamic Therapy and Triplet-Triplet Annihilation Upconversion
    (Royal Society of Chemistry, 2021) Dartar, Suay; Emrullahoğlu, Mustafa; Karakuş, Erman; Hou, Yuqi; Zhao, Jianzhang; Emrullahoğlu, Mustafa; 04.01. Department of Chemistry; 04.04. Department of Photonics; 04. Faculty of Science; 01. Izmir Institute of Technology
    We devised a new generation of halogen-based triplet sensitisers comprising geminal dibromides at the vinyl backbone of a BODIPY fluorophore. Incorporating geminal dibromides into the pi-conjugation of BODIPY enhanced intersystem crossing due to the heavy atom effect, which in turn improved the extent of excited triplet states.